add

2025-04-02 10:41:42 -04:00 · 2022-03-26 16:36:38 -04:00 · 2022-03-26 16:36:38 -04:00 · a67aa7df28
commit a67aa7df28
parent 75c3c61928
57 changed files with 42084 additions and 0 deletions
--- a/config.terrain.json
+++ b/config.terrain.json
@ -0,0 +1,43 @@
+{
+  "_global": {
+    "_base": {
+      "store": {
+        "fee": {
+          "gasLimit": 2000000,
+          "amount": {
+            "uluna": 1000000
+          }
+        }
+      },
+      "instantiation": {
+        "fee": {
+          "gasLimit": 2000000,
+          "amount": {
+            "uluna": 1000000
+          }
+        },
+        "instantiateMsg": {
+          "count": 0
+        }
+      }
+    }
+  },
+  "mainnet": {
+    "_connection": {
+      "chainID": "columbus-5",
+      "URL": "https://lcd.terra.dev"
+    }
+  },
+  "testnet": {
+    "_connection": {
+      "chainID": "bombay-12",
+      "URL": "https://bombay-lcd.terra.dev"
+    }
+  },
+  "localterra": {
+    "_connection": {
+      "chainID": "localterra",
+      "URL": "http://localhost:3060"
+    }
+  }
+}
--- a/contracts/counter/.cargo/config
+++ b/contracts/counter/.cargo/config
@ -0,0 +1,4 @@
+[alias]
+wasm = "build --release --target wasm32-unknown-unknown"
+unit-test = "test --lib"
+schema = "run --example schema"
--- a/contracts/counter/.circleci/config.yml
+++ b/contracts/counter/.circleci/config.yml
@ -0,0 +1,61 @@
+version: 2.1
+
+executors:
+  builder:
+    docker:
+      - image: buildpack-deps:trusty
+
+jobs:
+  docker-image:
+    executor: builder
+    steps:
+      - checkout
+      - setup_remote_docker
+        docker_layer_caching: true
+      - run:
+          name: Build Docker artifact
+          command: docker build --pull -t "cosmwasm/cw-gitpod-base:${CIRCLE_SHA1}" .
+      - run:
+          name: Push application Docker image to docker hub
+          command: |
+            if [ "${CIRCLE_BRANCH}" = "master" ]; then
+              docker tag "cosmwasm/cw-gitpod-base:${CIRCLE_SHA1}" cosmwasm/cw-gitpod-base:latest
+              docker login --password-stdin -u "$DOCKER_USER" \<<<"$DOCKER_PASS"
+              docker push cosmwasm/cw-gitpod-base:latest
+              docker logout
+            fi
+
+  docker-tagged:
+    executor: builder
+    steps:
+      - checkout
+      - setup_remote_docker
+        docker_layer_caching: true
+      - run:
+          name: Push application Docker image to docker hub
+          command: |
+            docker tag "cosmwasm/cw-gitpod-base:${CIRCLE_SHA1}" "cosmwasm/cw-gitpod-base:${CIRCLE_TAG}"
+            docker login --password-stdin -u "$DOCKER_USER" \<<<"$DOCKER_PASS"
+            docker push
+            docker logout
+
+workflows:
+  version: 2
+  test-suite:
+    jobs:
+      # this is now a slow process... let's only run on master
+      - docker-image:
+          filters:
+            branches:
+              only:
+                - master
+      - docker-tagged:
+          filters:
+            tags:
+              only:
+                - /^v.*/
+            branches:
+              ignore:
+                - /.*/
+            requires:
+              - docker-image
--- a/contracts/counter/.editorconfig
+++ b/contracts/counter/.editorconfig
@ -0,0 +1,11 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.rs]
+indent_size = 4
--- a/contracts/counter/.github/workflows/Basic.yml
+++ b/contracts/counter/.github/workflows/Basic.yml
@ -0,0 +1,74 @@
+# Based on https://github.com/actions-rs/example/blob/master/.github/workflows/quickstart.yml
+
+on: [push, pull_request]
+
+name: Basic
+
+jobs:
+
+  test:
+    name: Test Suite
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v2
+
+      - name: Install stable toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: 1.51.0
+          target: wasm32-unknown-unknown
+          override: true
+
+      - name: Run unit tests
+        uses: actions-rs/cargo@v1
+        with:
+          command: unit-test
+          args: --locked
+        env:
+          RUST_BACKTRACE: 1
+
+      - name: Compile WASM contract
+        uses: actions-rs/cargo@v1
+        with:
+          command: wasm
+          args: --locked
+        env:
+          RUSTFLAGS: "-C link-arg=-s"
+
+  lints:
+    name: Lints
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v2
+
+      - name: Install stable toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: 1.51.0
+          override: true
+          components: rustfmt, clippy
+
+      - name: Run cargo fmt
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+      - name: Run cargo clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: -- -D warnings
+
+      # TODO: we should check
+      # CHANGES_IN_REPO=$(git status --porcelain)
+      # after this, but I don't know how
+      - name: Generate Schema
+        uses: actions-rs/cargo@v1
+        with:
+          command: schema
+          args: --locked
--- a/contracts/counter/.gitignore
+++ b/contracts/counter/.gitignore
@ -0,0 +1,15 @@
+# Build results
+/target
+
+# Cargo+Git helper file (https://github.com/rust-lang/cargo/blob/0.44.1/src/cargo/sources/git/utils.rs#L320-L327)
+.cargo-ok
+
+# Text file backups
+**/*.rs.bk
+
+# macOS
+.DS_Store
+
+# IDEs
+*.iml
+.idea
--- a/contracts/counter/.gitpod.Dockerfile
+++ b/contracts/counter/.gitpod.Dockerfile
@ -0,0 +1,17 @@
+### wasmd ###
+FROM cosmwasm/wasmd:v0.18.0 as wasmd
+
+### rust-optimizer ###
+FROM cosmwasm/rust-optimizer:0.11.5 as rust-optimizer
+
+FROM gitpod/workspace-full:latest
+
+COPY --from=wasmd /usr/bin/wasmd /usr/local/bin/wasmd
+COPY --from=wasmd /opt/* /opt/
+
+RUN sudo apt-get update \
+    && sudo apt-get install -y jq \
+    && sudo rm -rf /var/lib/apt/lists/*
+
+RUN rustup update stable \
+   && rustup target add wasm32-unknown-unknown
--- a/contracts/counter/.gitpod.yml
+++ b/contracts/counter/.gitpod.yml
@ -0,0 +1,10 @@
+image: cosmwasm/cw-gitpod-base:v0.16
+
+vscode:
+  extensions:
+    - rust-lang.rust
+
+tasks:
+  - name: Dependencies & Build
+    init: |
+      cargo build
--- a/contracts/counter/Cargo.lock
+++ b/contracts/counter/Cargo.lock
@ -0,0 +1,583 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "base64"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
+
+[[package]]
+name = "block-buffer"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4152116fd6e9dadb291ae18fc1ec3575ed6d84c29642d97890f4b4a3417297e4"
+dependencies = [
+ "generic-array",
+]
+
+[[package]]
+name = "byteorder"
+version = "1.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
+
+[[package]]
+name = "cfg-if"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "const-oid"
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+checksum = "44c32f031ea41b4291d695026c023b95d59db2d8a2c7640800ed56bc8f510f22"
+
+[[package]]
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+dependencies = [
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+ "k256",
+ "rand_core 0.5.1",
+ "thiserror",
+]
+
+[[package]]
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+checksum = "9f6e6dff07965015c4fcdf477c4becde738a2bfb40cf6239bdcea9335016c5a2"
+dependencies = [
+ "syn",
+]
+
+[[package]]
+name = "cosmwasm-schema"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac9ba1eea088e7f1ec4a7679c43adcb51e80cbc2af6a6d83d1bb652b7adaf6dc"
+dependencies = [
+ "schemars",
+ "serde_json",
+]
+
+[[package]]
+name = "cosmwasm-std"
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+checksum = "92bdeee0ebba164ebbef9380522cc50f889db38acc1f1210f6b55ee2244b8c59"
+dependencies = [
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+ "cosmwasm-crypto",
+ "cosmwasm-derive",
+ "schemars",
+ "serde",
+ "serde-json-wasm",
+ "thiserror",
+ "uint",
+]
+
+[[package]]
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+checksum = "e26053f14f971b05abca3be34f80c631d70c5b5b9df175e7a1d8b4aad83e40cc"
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+
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+ "syn",
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+
+[[package]]
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
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+[[package]]
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+checksum = "93119e4feac1cbe6c798c34d3a53ea0026b0b1de6a120deef895137c0529bfe2"
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+ "syn",
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+
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+ "hex",
+ "static_assertions",
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+[[package]]
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+checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
+
+[[package]]
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+
+[[package]]
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+version = "0.9.0+wasi-snapshot-preview1"
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+checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
+
+[[package]]
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+version = "0.10.2+wasi-snapshot-preview1"
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+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "377db0846015f7ae377174787dd452e1c5f5a9050bc6f954911d01f116daa0cd"
--- a/contracts/counter/Cargo.toml
+++ b/contracts/counter/Cargo.toml
@ -0,0 +1,52 @@
+[package]
+name = "counter"
+version = "0.1.0"
+authors = ["BiPhan4 <bi.phan@ryerson.ca>"]
+edition = "2018"
+
+exclude = [
+  # Those files are rust-optimizer artifacts. You might want to commit them for convenience but they should not be part of the source code publication.
+  "contract.wasm",
+  "hash.txt",
+]
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[profile.release]
+opt-level = 3
+debug = false
+rpath = false
+lto = true
+debug-assertions = false
+codegen-units = 1
+panic = 'abort'
+incremental = false
+overflow-checks = true
+
+[features]
+# for more explicit tests, cargo test --features=backtraces
+backtraces = ["cosmwasm-std/backtraces"]
+# use library feature to disable all instantiate/execute/query exports
+library = []
+
+[package.metadata.scripts]
+optimize = """docker run --rm -v "$(pwd)":/code \
+  --mount type=volume,source="$(basename "$(pwd)")_cache",target=/code/target \
+  --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
+  cosmwasm/rust-optimizer:0.12.3
+"""
+
+[dependencies]
+cosmwasm-std = { version = "0.16.2" }
+cosmwasm-storage = { version = "0.16.0" }
+cw-storage-plus = "0.8.0"
+cw2 = "0.8.1"
+schemars = "0.8.3"
+serde = { version = "1.0.127", default-features = false, features = ["derive"] }
+thiserror = { version = "1.0.26" }
+
+[dev-dependencies]
+cosmwasm-schema = { version = "0.16.0" }
--- a/contracts/counter/Developing.md
+++ b/contracts/counter/Developing.md
@ -0,0 +1,96 @@
+# Developing
+
+If you have recently created a contract with this template, you probably could use some
+help on how to build and test the contract, as well as prepare it for production. This
+file attempts to provide a brief overview, assuming you have installed a recent
+version of Rust already (eg. 1.51.0+).
+
+## Prerequisites
+
+Before starting, make sure you have [rustup](https://rustup.rs/) along with a
+recent `rustc` and `cargo` version installed. Currently, we are testing on 1.51.0+.
+
+And you need to have the `wasm32-unknown-unknown` target installed as well.
+
+You can check that via:
+
+```sh
+rustc --version
+cargo --version
+rustup target list --installed
+# if wasm32 is not listed above, run this
+rustup target add wasm32-unknown-unknown
+```
+
+## Compiling and running tests
+
+Now that you created your custom contract, make sure you can compile and run it before
+making any changes. Go into the repository and do:
+
+```sh
+# this will produce a wasm build in ./target/wasm32-unknown-unknown/release/YOUR_NAME_HERE.wasm
+cargo wasm
+
+# this runs unit tests with helpful backtraces
+RUST_BACKTRACE=1 cargo unit-test
+
+# auto-generate json schema
+cargo schema
+```
+
+### Understanding the tests
+
+The main code is in `src/contract.rs` and the unit tests there run in pure rust,
+which makes them very quick to execute and give nice output on failures, especially
+if you do `RUST_BACKTRACE=1 cargo unit-test`.
+
+We consider testing critical for anything on a blockchain, and recommend to always keep
+the tests up to date.
+
+## Generating JSON Schema
+
+While the Wasm calls (`instantiate`, `execute`, `query`) accept JSON, this is not enough
+information to use it. We need to expose the schema for the expected messages to the
+clients. You can generate this schema by calling `cargo schema`, which will output
+4 files in `./schema`, corresponding to the 3 message types the contract accepts,
+as well as the internal `State`.
+
+These files are in standard json-schema format, which should be usable by various
+client side tools, either to auto-generate codecs, or just to validate incoming
+json wrt. the defined schema.
+
+## Preparing the Wasm bytecode for production
+
+Before we upload it to a chain, we need to ensure the smallest output size possible,
+as this will be included in the body of a transaction. We also want to have a
+reproducible build process, so third parties can verify that the uploaded Wasm
+code did indeed come from the claimed rust code.
+
+To solve both these issues, we have produced `rust-optimizer`, a docker image to
+produce an extremely small build output in a consistent manner. The suggest way
+to run it is this:
+
+```sh
+docker run --rm -v "$(pwd)":/code \
+  --mount type=volume,source="$(basename "$(pwd)")_cache",target=/code/target \
+  --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
+  cosmwasm/rust-optimizer:0.11.4
+```
+
+We must mount the contract code to `/code`. You can use a absolute path instead
+of `$(pwd)` if you don't want to `cd` to the directory first. The other two
+volumes are nice for speedup. Mounting `/code/target` in particular is useful
+to avoid docker overwriting your local dev files with root permissions.
+Note the `/code/target` cache is unique for each contract being compiled to limit
+interference, while the registry cache is global.
+
+This is rather slow compared to local compilations, especially the first compile
+of a given contract. The use of the two volume caches is very useful to speed up
+following compiles of the same contract.
+
+This produces an `artifacts` directory with a `PROJECT_NAME.wasm`, as well as
+`checksums.txt`, containing the Sha256 hash of the wasm file.
+The wasm file is compiled deterministically (anyone else running the same
+docker on the same git commit should get the identical file with the same Sha256 hash).
+It is also stripped and minimized for upload to a blockchain (we will also
+gzip it in the uploading process to make it even smaller).
--- a/contracts/counter/Importing.md
+++ b/contracts/counter/Importing.md
@ -0,0 +1,62 @@
+# Importing
+
+In [Publishing](./Publishing.md), we discussed how you can publish your contract to the world.
+This looks at the flip-side, how can you use someone else's contract (which is the same
+question as how they will use your contract). Let's go through the various stages.
+
+## Verifying Artifacts
+
+Before using remote code, you most certainly want to verify it is honest.
+
+The simplest audit of the repo is to simply check that the artifacts in the repo
+are correct. This involves recompiling the claimed source with the claimed builder
+and validating that the locally compiled code (hash) matches the code hash that was
+uploaded. This will verify that the source code is the correct preimage. Which allows
+one to audit the original (Rust) source code, rather than looking at wasm bytecode.
+
+We have a script to do this automatic verification steps that can
+easily be run by many individuals. Please check out
+[`cosmwasm-verify`](https://github.com/CosmWasm/cosmwasm-verify/blob/master/README.md)
+to see a simple shell script that does all these steps and easily allows you to verify
+any uploaded contract.
+
+## Reviewing
+
+Once you have done the quick programatic checks, it is good to give at least a quick
+look through the code. A glance at `examples/schema.rs` to make sure it is outputing
+all relevant structs from `contract.rs`, and also ensure `src/lib.rs` is just the
+default wrapper (nothing funny going on there). After this point, we can dive into
+the contract code itself. Check the flows for the execute methods, any invariants and
+permission checks that should be there, and a reasonable data storage format.
+
+You can dig into the contract as far as you want, but it is important to make sure there
+are no obvious backdoors at least.
+
+## Decentralized Verification
+
+It's not very practical to do a deep code review on every dependency you want to use,
+which is a big reason for the popularity of code audits in the blockchain world. We trust
+some experts review in lieu of doing the work ourselves. But wouldn't it be nice to do this
+in a decentralized manner and peer-review each other's contracts? Bringing in deeper domain
+knowledge and saving fees.
+
+Luckily, there is an amazing project called [crev](https://github.com/crev-dev/cargo-crev/blob/master/cargo-crev/README.md)
+that provides `A cryptographically verifiable code review system for the cargo (Rust) package manager`.
+
+I highly recommend that CosmWasm contract developers get set up with this. At minimum, we
+can all add a review on a package that programmatically checked out that the json schemas
+and wasm bytecode do match the code, and publish our claim, so we don't all rely on some
+central server to say it validated this. As we go on, we can add deeper reviews on standard
+packages.
+
+If you want to use `cargo-crev`, please follow their
+[getting started guide](https://github.com/crev-dev/cargo-crev/blob/master/cargo-crev/src/doc/getting_started.md)
+and once you have made your own *proof repository* with at least one *trust proof*,
+please make a PR to the [`cawesome-wasm`]() repo with a link to your repo and
+some public name or pseudonym that people know you by. This allows people who trust you
+to also reuse your proofs.
+
+There is a [standard list of proof repos](https://github.com/crev-dev/cargo-crev/wiki/List-of-Proof-Repositories)
+with some strong rust developers in there. This may cover dependencies like `serde` and `snafu`
+but will not hit any CosmWasm-related modules, so we look to bootstrap a very focused
+review community.
--- a/contracts/counter/LICENSE
+++ b/contracts/counter/LICENSE
@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
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+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
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+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
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+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
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+      Work and such Derivative Works in Source or Object form.
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+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
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+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
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+      (d) If the Work includes a "NOTICE" text file as part of its
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+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
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+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
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+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
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--- a/contracts/counter/NOTICE
+++ b/contracts/counter/NOTICE
@ -0,0 +1,13 @@
+Copyright 2022 BiPhan4 <bi.phan@ryerson.ca>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
--- a/contracts/counter/Publishing.md
+++ b/contracts/counter/Publishing.md
@ -0,0 +1,115 @@
+# Publishing Contracts
+
+This is an overview of how to publish the contract's source code in this repo.
+We use Cargo's default registry [crates.io](https://crates.io/) for publishing contracts written in Rust.
+
+## Preparation
+
+Ensure the `Cargo.toml` file in the repo is properly configured. In particular, you want to
+choose a name starting with `cw-`, which will help a lot finding CosmWasm contracts when
+searching on crates.io. For the first publication, you will probably want version `0.1.0`.
+If you have tested this on a public net already and/or had an audit on the code,
+you can start with `1.0.0`, but that should imply some level of stability and confidence.
+You will want entries like the following in `Cargo.toml`:
+
+```toml
+name = "cw-escrow"
+version = "0.1.0"
+description = "Simple CosmWasm contract for an escrow with arbiter and timeout"
+repository = "https://github.com/confio/cosmwasm-examples"
+```
+
+You will also want to add a valid [SPDX license statement](https://spdx.org/licenses/),
+so others know the rules for using this crate. You can use any license you wish,
+even a commercial license, but we recommend choosing one of the following, unless you have
+specific requirements.
+
+* Permissive: [`Apache-2.0`](https://spdx.org/licenses/Apache-2.0.html#licenseText) or [`MIT`](https://spdx.org/licenses/MIT.html#licenseText)
+* Copyleft: [`GPL-3.0-or-later`](https://spdx.org/licenses/GPL-3.0-or-later.html#licenseText) or [`AGPL-3.0-or-later`](https://spdx.org/licenses/AGPL-3.0-or-later.html#licenseText)
+* Commercial license: `Commercial` (not sure if this works, I cannot find examples)
+
+It is also helpful to download the LICENSE text (linked to above) and store this
+in a LICENSE file in your repo. Now, you have properly configured your crate for use
+in a larger ecosystem.
+
+### Updating schema
+
+To allow easy use of the contract, we can publish the schema (`schema/*.json`) together
+with the source code.
+
+```sh
+cargo schema
+```
+
+Ensure you check in all the schema files, and make a git commit with the final state.
+This commit will be published and should be tagged. Generally, you will want to
+tag with the version (eg. `v0.1.0`), but in the `cosmwasm-examples` repo, we have
+multiple contracts and label it like `escrow-0.1.0`. Don't forget a
+`git push && git push --tags`
+
+### Note on build results
+
+Build results like Wasm bytecode or expected hash don't need to be updated since
+the don't belong to the source publication. However, they are excluded from packaging
+in `Cargo.toml` which allows you to commit them to your git repository if you like.
+
+```toml
+exclude = ["artifacts"]
+```
+
+A single source code can be built with multiple different optimizers, so
+we should not make any strict assumptions on the tooling that will be used.
+
+## Publishing
+
+Now that your package is properly configured and all artifacts are committed, it
+is time to share it with the world.
+Please refer to the [complete instructions for any questions](https://rurust.github.io/cargo-docs-ru/crates-io.html),
+but I will try to give a quick overview of the happy path here.
+
+### Registry
+
+You will need an account on [crates.io](https://crates.io) to publish a rust crate.
+If you don't have one already, just click on "Log in with GitHub" in the top-right
+to quickly set up a free account. Once inside, click on your username (top-right),
+then "Account Settings". On the bottom, there is a section called "API Access".
+If you don't have this set up already, create a new token and use `cargo login`
+to set it up. This will now authenticate you with the `cargo` cli tool and allow
+you to publish.
+
+### Uploading
+
+Once this is set up, make sure you commit the current state you want to publish.
+Then try `cargo publish --dry-run`. If that works well, review the files that
+will be published via `cargo package --list`. If you are satisfied, you can now
+officially publish it via `cargo publish`.
+
+Congratulations, your package is public to the world.
+
+### Sharing
+
+Once you have published your package, people can now find it by
+[searching for "cw-" on crates.io](https://crates.io/search?q=cw).
+But that isn't exactly the simplest way. To make things easier and help
+keep the ecosystem together, we suggest making a PR to add your package
+to the [`cawesome-wasm`](https://github.com/cosmwasm/cawesome-wasm) list.
+
+### Organizations
+
+Many times you are writing a contract not as a solo developer, but rather as
+part of an organization. You will want to allow colleagues to upload new
+versions of the contract to crates.io when you are on holiday.
+[These instructions show how]() you can set up your crate to allow multiple maintainers.
+
+You can add another owner to the crate by specifying their github user. Note, you will
+now both have complete control of the crate, and they can remove you:
+
+`cargo owner --add ethanfrey`
+
+You can also add an existing github team inside your organization:
+
+`cargo owner --add github:confio:developers`
+
+The team will allow anyone who is currently in the team to publish new versions of the crate.
+And this is automatically updated when you make changes on github. However, it will not allow
+anyone in the team to add or remove other owners.
--- a/contracts/counter/README.md
+++ b/contracts/counter/README.md
@ -0,0 +1,106 @@
+# CosmWasm Starter Pack
+
+This is a template to build smart contracts in Rust to run inside a
+[Cosmos SDK](https://github.com/cosmos/cosmos-sdk) module on all chains that enable it.
+To understand the framework better, please read the overview in the
+[cosmwasm repo](https://github.com/CosmWasm/cosmwasm/blob/master/README.md),
+and dig into the [cosmwasm docs](https://www.cosmwasm.com).
+This assumes you understand the theory and just want to get coding.
+
+## Creating a new repo from template
+
+Assuming you have a recent version of rust and cargo (v1.51.0+) installed
+(via [rustup](https://rustup.rs/)),
+then the following should get you a new repo to start a contract:
+
+
+Install [cargo-generate](https://github.com/ashleygwilliams/cargo-generate) and cargo-run-script.
+Unless you did that before, run this line now:
+
+```sh
+cargo install cargo-generate cargo-run-script --features vendored-openssl 
+```
+
+Now, use it to create your new contract.
+Go to the folder in which you want to place it and run:
+
+
+**Latest: 0.16**
+
+```sh
+cargo generate --git https://github.com/CosmWasm/cw-template.git --name PROJECT_NAME
+````
+
+**Older Version**
+
+Pass version as branch flag:
+
+```sh
+cargo generate --git https://github.com/CosmWasm/cw-template.git --branch <version> --name PROJECT_NAME
+````
+
+Example:
+
+```sh
+cargo generate --git https://github.com/CosmWasm/cw-template.git --branch 0.14 --name PROJECT_NAME
+```
+
+You will now have a new folder called `PROJECT_NAME` (I hope you changed that to something else)
+containing a simple working contract and build system that you can customize.
+
+## Create a Repo
+
+After generating, you have a initialized local git repo, but no commits, and no remote.
+Go to a server (eg. github) and create a new upstream repo (called `YOUR-GIT-URL` below).
+Then run the following:
+
+```sh
+# this is needed to create a valid Cargo.lock file (see below)
+cargo check
+git branch -M main
+git add .
+git commit -m 'Initial Commit'
+git remote add origin YOUR-GIT-URL
+git push -u origin master
+```
+
+## CI Support
+
+We have template configurations for both [GitHub Actions](.github/workflows/Basic.yml)
+and [Circle CI](.circleci/config.yml) in the generated project, so you can
+get up and running with CI right away.
+
+One note is that the CI runs all `cargo` commands
+with `--locked` to ensure it uses the exact same versions as you have locally. This also means
+you must have an up-to-date `Cargo.lock` file, which is not auto-generated.
+The first time you set up the project (or after adding any dep), you should ensure the
+`Cargo.lock` file is updated, so the CI will test properly. This can be done simply by
+running `cargo check` or `cargo unit-test`.
+
+## Using your project
+
+Once you have your custom repo, you should check out [Developing](./Developing.md) to explain
+more on how to run tests and develop code. Or go through the
+[online tutorial](https://docs.cosmwasm.com/) to get a better feel
+of how to develop.
+
+[Publishing](./Publishing.md) contains useful information on how to publish your contract
+to the world, once you are ready to deploy it on a running blockchain. And
+[Importing](./Importing.md) contains information about pulling in other contracts or crates
+that have been published.
+
+Please replace this README file with information about your specific project. You can keep
+the `Developing.md` and `Publishing.md` files as useful referenced, but please set some
+proper description in the README.
+
+## Gitpod integration
+
+[Gitpod](https://www.gitpod.io/) container-based development platform will be enabled on your project by default.
+
+Workspace contains:
+ - **rust**: for builds
+ - [wasmd](https://github.com/CosmWasm/wasmd): for local node setup and client
+ - **jq**: shell JSON manipulation tool
+
+Follow [Gitpod Getting Started](https://www.gitpod.io/docs/getting-started) and launch your workspace.
+
--- a/contracts/counter/examples/schema.rs
+++ b/contracts/counter/examples/schema.rs
@ -0,0 +1,20 @@
+use std::env::current_dir;
+use std::fs::create_dir_all;
+
+use cosmwasm_schema::{export_schema, remove_schemas, schema_for};
+
+use counter::msg::{CountResponse, ExecuteMsg, InstantiateMsg, QueryMsg};
+use counter::state::State;
+
+fn main() {
+    let mut out_dir = current_dir().unwrap();
+    out_dir.push("schema");
+    create_dir_all(&out_dir).unwrap();
+    remove_schemas(&out_dir).unwrap();
+
+    export_schema(&schema_for!(InstantiateMsg), &out_dir);
+    export_schema(&schema_for!(ExecuteMsg), &out_dir);
+    export_schema(&schema_for!(QueryMsg), &out_dir);
+    export_schema(&schema_for!(State), &out_dir);
+    export_schema(&schema_for!(CountResponse), &out_dir);
+}
--- a/contracts/counter/rustfmt.toml
+++ b/contracts/counter/rustfmt.toml
@ -0,0 +1,15 @@
+# stable
+newline_style = "unix"
+hard_tabs = false
+tab_spaces = 4
+
+# unstable... should we require `rustup run nightly cargo fmt` ?
+# or just update the style guide when they are stable?
+#fn_single_line = true
+#format_code_in_doc_comments = true
+#overflow_delimited_expr = true
+#reorder_impl_items = true
+#struct_field_align_threshold = 20
+#struct_lit_single_line = true
+#report_todo = "Always"
+
--- a/contracts/counter/schema/count_response.json
+++ b/contracts/counter/schema/count_response.json
@ -0,0 +1,14 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "CountResponse",
+  "type": "object",
+  "required": [
+    "count"
+  ],
+  "properties": {
+    "count": {
+      "type": "integer",
+      "format": "int32"
+    }
+  }
+}
--- a/contracts/counter/schema/execute_msg.json
+++ b/contracts/counter/schema/execute_msg.json
@ -0,0 +1,39 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "ExecuteMsg",
+  "anyOf": [
+    {
+      "type": "object",
+      "required": [
+        "increment"
+      ],
+      "properties": {
+        "increment": {
+          "type": "object"
+        }
+      },
+      "additionalProperties": false
+    },
+    {
+      "type": "object",
+      "required": [
+        "reset"
+      ],
+      "properties": {
+        "reset": {
+          "type": "object",
+          "required": [
+            "count"
+          ],
+          "properties": {
+            "count": {
+              "type": "integer",
+              "format": "int32"
+            }
+          }
+        }
+      },
+      "additionalProperties": false
+    }
+  ]
+}
--- a/contracts/counter/schema/instantiate_msg.json
+++ b/contracts/counter/schema/instantiate_msg.json
@ -0,0 +1,14 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "InstantiateMsg",
+  "type": "object",
+  "required": [
+    "count"
+  ],
+  "properties": {
+    "count": {
+      "type": "integer",
+      "format": "int32"
+    }
+  }
+}
--- a/contracts/counter/schema/query_msg.json
+++ b/contracts/counter/schema/query_msg.json
@ -0,0 +1,18 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "QueryMsg",
+  "anyOf": [
+    {
+      "type": "object",
+      "required": [
+        "get_count"
+      ],
+      "properties": {
+        "get_count": {
+          "type": "object"
+        }
+      },
+      "additionalProperties": false
+    }
+  ]
+}
--- a/contracts/counter/schema/state.json
+++ b/contracts/counter/schema/state.json
@ -0,0 +1,24 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "State",
+  "type": "object",
+  "required": [
+    "count",
+    "owner"
+  ],
+  "properties": {
+    "count": {
+      "type": "integer",
+      "format": "int32"
+    },
+    "owner": {
+      "$ref": "#/definitions/Addr"
+    }
+  },
+  "definitions": {
+    "Addr": {
+      "description": "A human readable address.\n\nIn Cosmos, this is typically bech32 encoded. But for multi-chain smart contracts no assumptions should be made other than being UTF-8 encoded and of reasonable length.\n\nThis type represents a validated address. It can be created in the following ways 1. Use `Addr::unchecked(input)` 2. Use `let checked: Addr = deps.api.addr_validate(input)?` 3. Use `let checked: Addr = deps.api.addr_humanize(canonical_addr)?` 4. Deserialize from JSON. This must only be done from JSON that was validated before such as a contract's state. `Addr` must not be used in messages sent by the user because this would result in unvalidated instances.\n\nThis type is immutable. If you really need to mutate it (Really? Are you sure?), create a mutable copy using `let mut mutable = Addr::to_string()` and operate on that `String` instance.",
+      "type": "string"
+    }
+  }
+}
--- a/contracts/counter/src/contract.rs
+++ b/contracts/counter/src/contract.rs
@ -0,0 +1,147 @@
+#[cfg(not(feature = "library"))]
+use cosmwasm_std::entry_point;
+use cosmwasm_std::{to_binary, Binary, Deps, DepsMut, Env, MessageInfo, Response, StdResult};
+use cw2::set_contract_version;
+
+use crate::error::ContractError;
+use crate::msg::{CountResponse, ExecuteMsg, InstantiateMsg, QueryMsg};
+use crate::state::{State, STATE};
+
+// version info for migration info
+const CONTRACT_NAME: &str = "crates.io:counter";
+const CONTRACT_VERSION: &str = env!("CARGO_PKG_VERSION");
+
+#[cfg_attr(not(feature = "library"), entry_point)]
+pub fn instantiate(
+    deps: DepsMut,
+    _env: Env,
+    info: MessageInfo,
+    msg: InstantiateMsg,
+) -> Result<Response, ContractError> {
+    let state = State {
+        count: msg.count,
+        owner: info.sender.clone(),
+    };
+    set_contract_version(deps.storage, CONTRACT_NAME, CONTRACT_VERSION)?;
+    STATE.save(deps.storage, &state)?;
+
+    Ok(Response::new()
+        .add_attribute("method", "instantiate")
+        .add_attribute("owner", info.sender)
+        .add_attribute("count", msg.count.to_string()))
+}
+
+#[cfg_attr(not(feature = "library"), entry_point)]
+pub fn execute(
+    deps: DepsMut,
+    _env: Env,
+    info: MessageInfo,
+    msg: ExecuteMsg,
+) -> Result<Response, ContractError> {
+    match msg {
+        ExecuteMsg::Increment {} => try_increment(deps),
+        ExecuteMsg::Reset { count } => try_reset(deps, info, count),
+    }
+}
+
+pub fn try_increment(deps: DepsMut) -> Result<Response, ContractError> {
+    STATE.update(deps.storage, |mut state| -> Result<_, ContractError> {
+        state.count += 1;
+        Ok(state)
+    })?;
+
+    Ok(Response::new().add_attribute("method", "try_increment"))
+}
+pub fn try_reset(deps: DepsMut, info: MessageInfo, count: i32) -> Result<Response, ContractError> {
+    STATE.update(deps.storage, |mut state| -> Result<_, ContractError> {
+        if info.sender != state.owner {
+            return Err(ContractError::Unauthorized {});
+        }
+        state.count = count;
+        Ok(state)
+    })?;
+    Ok(Response::new().add_attribute("method", "reset"))
+}
+
+#[cfg_attr(not(feature = "library"), entry_point)]
+pub fn query(deps: Deps, _env: Env, msg: QueryMsg) -> StdResult<Binary> {
+    match msg {
+        QueryMsg::GetCount {} => to_binary(&query_count(deps)?),
+    }
+}
+
+fn query_count(deps: Deps) -> StdResult<CountResponse> {
+    let state = STATE.load(deps.storage)?;
+    Ok(CountResponse { count: state.count })
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use cosmwasm_std::testing::{mock_dependencies, mock_env, mock_info};
+    use cosmwasm_std::{coins, from_binary};
+
+    #[test]
+    fn proper_initialization() {
+        let mut deps = mock_dependencies(&[]);
+
+        let msg = InstantiateMsg { count: 17 };
+        let info = mock_info("creator", &coins(1000, "earth"));
+
+        // we can just call .unwrap() to assert this was a success
+        let res = instantiate(deps.as_mut(), mock_env(), info, msg).unwrap();
+        assert_eq!(0, res.messages.len());
+
+        // it worked, let's query the state
+        let res = query(deps.as_ref(), mock_env(), QueryMsg::GetCount {}).unwrap();
+        let value: CountResponse = from_binary(&res).unwrap();
+        assert_eq!(17, value.count);
+    }
+
+    #[test]
+    fn increment() {
+        let mut deps = mock_dependencies(&coins(2, "token"));
+
+        let msg = InstantiateMsg { count: 17 };
+        let info = mock_info("creator", &coins(2, "token"));
+        let _res = instantiate(deps.as_mut(), mock_env(), info, msg).unwrap();
+
+        // beneficiary can release it
+        let info = mock_info("anyone", &coins(2, "token"));
+        let msg = ExecuteMsg::Increment {};
+        let _res = execute(deps.as_mut(), mock_env(), info, msg).unwrap();
+
+        // should increase counter by 1
+        let res = query(deps.as_ref(), mock_env(), QueryMsg::GetCount {}).unwrap();
+        let value: CountResponse = from_binary(&res).unwrap();
+        assert_eq!(18, value.count);
+    }
+
+    #[test]
+    fn reset() {
+        let mut deps = mock_dependencies(&coins(2, "token"));
+
+        let msg = InstantiateMsg { count: 17 };
+        let info = mock_info("creator", &coins(2, "token"));
+        let _res = instantiate(deps.as_mut(), mock_env(), info, msg).unwrap();
+
+        // beneficiary can release it
+        let unauth_info = mock_info("anyone", &coins(2, "token"));
+        let msg = ExecuteMsg::Reset { count: 5 };
+        let res = execute(deps.as_mut(), mock_env(), unauth_info, msg);
+        match res {
+            Err(ContractError::Unauthorized {}) => {}
+            _ => panic!("Must return unauthorized error"),
+        }
+
+        // only the original creator can reset the counter
+        let auth_info = mock_info("creator", &coins(2, "token"));
+        let msg = ExecuteMsg::Reset { count: 5 };
+        let _res = execute(deps.as_mut(), mock_env(), auth_info, msg).unwrap();
+
+        // should now be 5
+        let res = query(deps.as_ref(), mock_env(), QueryMsg::GetCount {}).unwrap();
+        let value: CountResponse = from_binary(&res).unwrap();
+        assert_eq!(5, value.count);
+    }
+}
--- a/contracts/counter/src/error.rs
+++ b/contracts/counter/src/error.rs
@ -0,0 +1,13 @@
+use cosmwasm_std::StdError;
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum ContractError {
+    #[error("{0}")]
+    Std(#[from] StdError),
+
+    #[error("Unauthorized")]
+    Unauthorized {},
+    // Add any other custom errors you like here.
+    // Look at https://docs.rs/thiserror/1.0.21/thiserror/ for details.
+}
--- a/contracts/counter/src/lib.rs
+++ b/contracts/counter/src/lib.rs
@ -0,0 +1,6 @@
+pub mod contract;
+mod error;
+pub mod msg;
+pub mod state;
+
+pub use crate::error::ContractError;
--- a/contracts/counter/src/msg.rs
+++ b/contracts/counter/src/msg.rs
@ -0,0 +1,27 @@
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
+pub struct InstantiateMsg {
+    pub count: i32,
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum ExecuteMsg {
+    Increment {},
+    Reset { count: i32 },
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum QueryMsg {
+    // GetCount returns the current count as a json-encoded number
+    GetCount {},
+}
+
+// We define a custom struct for each query response
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
+pub struct CountResponse {
+    pub count: i32,
+}
--- a/contracts/counter/src/state.rs
+++ b/contracts/counter/src/state.rs
@ -0,0 +1,13 @@
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+
+use cosmwasm_std::Addr;
+use cw_storage_plus::Item;
+
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
+pub struct State {
+    pub count: i32,
+    pub owner: Addr,
+}
+
+pub const STATE: Item<State> = Item::new("state");
--- a/frontend/.gitignore
+++ b/frontend/.gitignore
@ -0,0 +1,23 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
--- a/frontend/README.md
+++ b/frontend/README.md
@ -0,0 +1,70 @@
+# Getting Started with Create React App
+
+This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
+
+## Available Scripts
+
+In the project directory, you can run:
+
+### `npm start`
+
+Runs the app in the development mode.\
+Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
+
+The page will reload if you make edits.\
+You will also see any lint errors in the console.
+
+### `npm test`
+
+Launches the test runner in the interactive watch mode.\
+See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.
+
+### `npm run build`
+
+Builds the app for production to the `build` folder.\
+It correctly bundles React in production mode and optimizes the build for the best performance.
+
+The build is minified and the filenames include the hashes.\
+Your app is ready to be deployed!
+
+See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.
+
+### `npm run eject`
+
+**Note: this is a one-way operation. Once you `eject`, you can’t go back!**
+
+If you aren’t satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.
+
+Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own.
+
+You don’t have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it.
+
+## Learn More
+
+You can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).
+
+To learn React, check out the [React documentation](https://reactjs.org/).
+
+### Code Splitting
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/code-splitting](https://facebook.github.io/create-react-app/docs/code-splitting)
+
+### Analyzing the Bundle Size
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size](https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size)
+
+### Making a Progressive Web App
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app](https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app)
+
+### Advanced Configuration
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/advanced-configuration](https://facebook.github.io/create-react-app/docs/advanced-configuration)
+
+### Deployment
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/deployment](https://facebook.github.io/create-react-app/docs/deployment)
+
+### `npm run build` fails to minify
+
+This section has moved here: [https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify](https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify)
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
--- a/frontend/package.json
+++ b/frontend/package.json
@ -0,0 +1,52 @@
+{
+  "name": "my-terra-dapp-frontend",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@terra-money/terra.js": "^2.0.15",
+    "@terra-money/wallet-provider": "^2.3.0",
+    "@testing-library/jest-dom": "^5.14.1",
+    "@testing-library/react": "^11.2.7",
+    "@testing-library/user-event": "^12.8.3",
+    "react": "^17.0.2",
+    "react-dom": "^17.0.2",
+    "react-scripts": "^4.0.3",
+    "web-vitals": "^1.1.2"
+  },
+  "devDependencies": {
+    "eslint": "^7.32.0",
+    "eslint-config-airbnb": "^18.2.1",
+    "eslint-config-prettier": "^8.3.0",
+    "eslint-config-react-app": "^6.0.0",
+    "eslint-plugin-import": "^2.25.2",
+    "eslint-plugin-jsx-a11y": "^6.4.1",
+    "eslint-plugin-prettier": "^3.4.1",
+    "eslint-plugin-react": "^7.26.1",
+    "eslint-plugin-react-hooks": "^4.2.0"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test",
+    "eject": "react-scripts eject",
+    "lint": "eslint src"
+  },
+  "eslintConfig": {
+    "extends": [
+      "react-app",
+      "react-app/jest"
+    ]
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  }
+}
--- a/frontend/public/favicon.ico
+++ b/frontend/public/favicon.ico
--- a/frontend/public/index.html
+++ b/frontend/public/index.html
@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#000000" />
+    <meta
+      name="description"
+      content="Web site created using create-react-app"
+    />
+    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
+    <!--
+      manifest.json provides metadata used when your web app is installed on a
+      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>My Dapp</title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root"></div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>
--- a/frontend/public/logo192.png
+++ b/frontend/public/logo192.png
--- a/frontend/public/logo512.png
+++ b/frontend/public/logo512.png
--- a/frontend/public/manifest.json
+++ b/frontend/public/manifest.json
@ -0,0 +1,25 @@
+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    },
+    {
+      "src": "logo192.png",
+      "type": "image/png",
+      "sizes": "192x192"
+    },
+    {
+      "src": "logo512.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ],
+  "start_url": ".",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff"
+}
--- a/frontend/public/robots.txt
+++ b/frontend/public/robots.txt
@ -0,0 +1,3 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow:
--- a/frontend/src/App.css
+++ b/frontend/src/App.css
@ -0,0 +1,38 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  height: 40vmin;
+  pointer-events: none;
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .App-logo {
+    animation: App-logo-spin infinite 20s linear;
+  }
+}
+
+.App-header {
+  background-color: #282c34;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+  color: white;
+}
+
+.App-link {
+  color: #61dafb;
+}
+
+@keyframes App-logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}
--- a/frontend/src/App.js
+++ b/frontend/src/App.js
@ -0,0 +1,77 @@
+import './App.css'
+
+import { useEffect, useState } from 'react'
+import {
+  useWallet,
+  useConnectedWallet,
+  WalletStatus,
+} from '@terra-money/wallet-provider'
+
+import * as execute from './contract/execute'
+import * as query from './contract/query'
+import { ConnectWallet } from './components/ConnectWallet'
+
+function App() {
+  const [count, setCount] = useState(null)
+  const [updating, setUpdating] = useState(true)
+  const [resetValue, setResetValue] = useState(0)
+
+  const { status } = useWallet()
+
+  const connectedWallet = useConnectedWallet()
+
+  useEffect(() => {
+    const prefetch = async () => {
+      if (connectedWallet) {
+        setCount((await query.getCount(connectedWallet)).count)
+      }
+      setUpdating(false)
+    }
+    prefetch()
+  }, [connectedWallet])
+
+  const onClickIncrement = async () => {
+    setUpdating(true)
+    await execute.increment(connectedWallet)
+    setCount((await query.getCount(connectedWallet)).count)
+    setUpdating(false)
+  }
+
+  const onClickReset = async () => {
+    setUpdating(true)
+    console.log(resetValue)
+    await execute.reset(connectedWallet, resetValue)
+    setCount((await query.getCount(connectedWallet)).count)
+    setUpdating(false)
+  }
+
+  return (
+    <div className="App">
+      <header className="App-header">
+        <div style={{ display: 'inline' }}>
+          COUNT: {count} {updating ? '(updating . . .)' : ''}
+          <button onClick={onClickIncrement} type="button">
+            {' '}
+            +{' '}
+          </button>
+        </div>
+        {status === WalletStatus.WALLET_CONNECTED && (
+          <div style={{ display: 'inline' }}>
+            <input
+              type="number"
+              onChange={(e) => setResetValue(+e.target.value)}
+              value={resetValue}
+            />
+            <button onClick={onClickReset} type="button">
+              {' '}
+              reset{' '}
+            </button>
+          </div>
+        )}
+        <ConnectWallet />
+      </header>
+    </div>
+  )
+}
+
+export default App
--- a/frontend/src/App.test.js
+++ b/frontend/src/App.test.js
@ -0,0 +1,8 @@
+import { render, screen } from '@testing-library/react'
+import App from './App'
+
+test('renders learn react link', () => {
+  render(<App />)
+  const linkElement = screen.getByText(/learn react/i)
+  expect(linkElement).toBeInTheDocument()
+})
--- a/frontend/src/components/ConnectWallet.js
+++ b/frontend/src/components/ConnectWallet.js
@ -0,0 +1,44 @@
+import { useWallet, WalletStatus } from '@terra-dev/use-wallet'
+
+export const ConnectWallet = () => {
+  const {
+    status,
+    availableConnectTypes,
+    availableInstallTypes,
+    connect,
+    install,
+    disconnect,
+  } = useWallet()
+
+  return (
+    <div>
+      {status === WalletStatus.WALLET_NOT_CONNECTED && (
+        <>
+          {availableInstallTypes.map((connectType) => (
+            <button
+              key={`install-${connectType}`}
+              onClick={() => install(connectType)}
+              type="button"
+            >
+              Install {connectType}
+            </button>
+          ))}
+          {availableConnectTypes.map((connectType) => (
+            <button
+              key={`connect-${connectType}`}
+              onClick={() => connect(connectType)}
+              type="button"
+            >
+              Connect {connectType}
+            </button>
+          ))}
+        </>
+      )}
+      {status === WalletStatus.WALLET_CONNECTED && (
+        <button onClick={() => disconnect()} type="button">
+          Disconnect
+        </button>
+      )}
+    </div>
+  )
+}
--- a/frontend/src/contract/address.js
+++ b/frontend/src/contract/address.js
@ -0,0 +1,3 @@
+// sync-ed from root via `tr sync-refs`
+import config from "../refs.terrain.json"
+export const contractAdress = (wallet) => config[wallet.network.name].counter.contractAddresses.default
--- a/frontend/src/contract/execute.js
+++ b/frontend/src/contract/execute.js
@ -0,0 +1,51 @@
+import { LCDClient, MsgExecuteContract, Fee } from "@terra-money/terra.js";
+import { contractAdress } from "./address";
+
+// ==== utils ====
+
+const sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms));
+const until = Date.now() + 1000 * 60 * 60;
+const untilInterval = Date.now() + 1000 * 60;
+
+const _exec =
+  (msg, fee = new Fee(200000, { uluna: 10000 })) =>
+  async (wallet) => {
+    const lcd = new LCDClient({
+      URL: wallet.network.lcd,
+      chainID: wallet.network.chainID,
+    });
+
+    const { result } = await wallet.post({
+      fee,
+      msgs: [
+        new MsgExecuteContract(
+          wallet.walletAddress,
+          contractAdress(wallet),
+          msg
+        ),
+      ],
+    });
+
+    while (true) {
+      try {
+        return await lcd.tx.txInfo(result.txhash);
+      } catch (e) {
+        if (Date.now() < untilInterval) {
+          await sleep(500);
+        } else if (Date.now() < until) {
+          await sleep(1000 * 10);
+        } else {
+          throw new Error(
+            `Transaction queued. To verify the status, please check the transaction hash: ${result.txhash}`
+          );
+        }
+      }
+    }
+  };
+
+// ==== execute contract ====
+
+export const increment = _exec({ increment: {} });
+
+export const reset = async (wallet, count) =>
+  _exec({ reset: { count } })(wallet);
--- a/frontend/src/contract/query.js
+++ b/frontend/src/contract/query.js
@ -0,0 +1,10 @@
+import { LCDClient } from '@terra-money/terra.js'
+import { contractAdress } from './address'
+
+export const getCount = async (wallet) => {
+  const lcd = new LCDClient({
+    URL: wallet.network.lcd,
+    chainID: wallet.network.chainID,
+  })
+  return lcd.wasm.contractQuery(contractAdress(wallet), { get_count: {} })
+}
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@ -0,0 +1,13 @@
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+code {
+  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    monospace;
+}
--- a/frontend/src/index.js
+++ b/frontend/src/index.js
@ -0,0 +1,25 @@
+import React from 'react'
+import ReactDOM from 'react-dom'
+
+import { getChainOptions, WalletProvider } from '@terra-money/wallet-provider'
+
+import './index.css'
+import App from './App'
+import reportWebVitals from './reportWebVitals'
+
+getChainOptions().then((chainOptions) => {
+  ReactDOM.render(
+    <React.StrictMode>
+      <WalletProvider {...chainOptions}>
+        <App />
+      </WalletProvider>
+      ,
+    </React.StrictMode>,
+    document.getElementById('root'),
+  )
+})
+
+// If you want to start measuring performance in your app, pass a function
+// to log results (for example: reportWebVitals(console.log))
+// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
+reportWebVitals()
--- a/frontend/src/reportWebVitals.js
+++ b/frontend/src/reportWebVitals.js
@ -0,0 +1,13 @@
+const reportWebVitals = (onPerfEntry) => {
+  if (onPerfEntry && onPerfEntry instanceof Function) {
+    import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
+      getCLS(onPerfEntry)
+      getFID(onPerfEntry)
+      getFCP(onPerfEntry)
+      getLCP(onPerfEntry)
+      getTTFB(onPerfEntry)
+    })
+  }
+}
+
+export default reportWebVitals
--- a/frontend/src/setupTests.js
+++ b/frontend/src/setupTests.js
@ -0,0 +1,5 @@
+// jest-dom adds custom jest matchers for asserting on DOM nodes.
+// allows you to do things like:
+// expect(element).toHaveTextContent(/react/i)
+// learn more: https://github.com/testing-library/jest-dom
+import '@testing-library/jest-dom'
--- a/keys.terrain.js
+++ b/keys.terrain.js
@ -0,0 +1,12 @@
+// can use `process.env.SECRET_MNEMONIC` or `process.env.SECRET_PRIV_KEY`
+// to populate secret in CI environment instead of hardcoding
+
+module.exports = {
+  custom_tester_1: {
+    mnemonic:
+      "shiver position copy catalog upset verify cheap library enjoy extend second peasant basic kit polar business document shrug pass chuckle lottery blind ecology stand",
+  },
+  custom_tester_2: {
+    privateKey: "fGl1yNoUnnNUqTUXXhxH9vJU0htlz9lWwBt3fQw+ixw=",
+  },
+};
--- a/lib/index.js
+++ b/lib/index.js
@ -0,0 +1,5 @@
+module.exports = ({ wallets, refs, config, client }) => ({
+  getCount: () => client.query("counter", { get_count: {} }),
+  increment: (signer = wallets.validator) =>
+    client.execute(signer, "counter", { increment: {} }),
+});
--- a/package.json
+++ b/package.json
@ -0,0 +1,13 @@
+{
+  "name": "my-terra-dapp",
+  "version": "1.0.0",
+  "description": "",
+  "dependencies": {
+    "@iboss/terrain": "0.0.8"
+  },
+  "workspaces": [
+    "frontend"
+  ],
+  "author": "",
+  "license": "ISC"
+}
--- a/refs.terrain.json
+++ b/refs.terrain.json
@ -0,0 +1 @@
+{}
--- a/tasks/example-custom-logic.js
+++ b/tasks/example-custom-logic.js
@ -0,0 +1,10 @@
+const { task, terrajs } = require("@iboss/terrain");
+
+// terrajs is basically re-exported terra.js (https://terra-money.github.io/terra.js/)
+
+task(async ({ wallets, refs, config, client }) => {
+  console.log("creating new key");
+  const key = terrajs.MnemonicKey();
+  console.log("private key", key.privateKey.toString("base64"));
+  console.log("mnemonic", key.mnemonic);
+});
--- a/tasks/example-lcd-client-extra.js
+++ b/tasks/example-lcd-client-extra.js
@ -0,0 +1,14 @@
+const { task } = require("@iboss/terrain");
+
+task(async ({ wallets, refs, config, client }) => {
+  // query is a thin wrapper of contract query
+  const count = await client.query("counter", { get_count: {} });
+  console.log("prev count = ", count);
+
+  // execute is a thin wrapper of signing and broadcasting execute contract
+  await client.execute(wallets.validator, "counter", {
+    increment: {},
+  });
+  const count2 = await client.query("counter", { get_count: {} });
+  console.log("new count = ", count2);
+});
--- a/tasks/example-with-lib.js
+++ b/tasks/example-with-lib.js
@ -0,0 +1,9 @@
+const { task } = require("@iboss/terrain");
+const lib = require("../lib");
+
+task(async (env) => {
+  const { getCount, increment } = lib(env);
+  console.log("count 1 = ", await getCount());
+  await increment();
+  console.log("count 2 = ", await getCount());
+});
--- a/tasks/template.js
+++ b/tasks/template.js
@ -0,0 +1,5 @@
+const { task } = require("@iboss/terrain");
+
+task(async ({ wallets, refs, config, client }) => {
+  // your logic here
+});